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Self-hosted server backups for the paranoid

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Self-hosted server backups for the paranoid
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Using Borg, SSH, Python and FreeNAS to securely backup Linux servers
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490
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CC Attribution 2.0 Belgium:
You are free to use, adapt and copy, distribute and transmit the work or content in adapted or unchanged form for any legal purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
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Abstract
Quarkslab is a French company specializing in information security R&D, consulting and software development. Due to strong data security constraints imposing self-hosted solutions coupled with limited resources in a fast-growth environment, data safety has been a pain point in our infrastructure. After our backup server failed, we decided to recreate a new backup system from scratch, adapted to our needs and using technologies we were familiar with, to backup 30+ Linux servers. In this talk, we will present how our old backup system failed, the key requirements we learned from this failure, and how we designed and implemented a new backup system based on Borg Backup, borgmatic, SSH, Python and FreeNAS to solve those requirements. We will conclude by listing the shortcomings and improvement points of our approach, as well as comparing our solution to seven important properties every backup system should have.